Antiskid device



O. CARDELL ANTISKID DEVICE Dec. 22, 1953 Filed Jly 19, 1951 vl" f Patented Dec. 22, l'1953 r 'f' UNITED STATES PAT r vtrios This invention relatesI to anti-skid devices for mounting on tires, particularly pneumaticY or other rubber tires and has for its primary object to provide such a device which may easily be adapted to tires of different widths.

Another object of the invention is to provide an anti-skid device eil'ectively gripping the tire to prevent loosening of the device therefrom.

Still another object of the invention is to provide an anti-skid device which may easily be mounted on the tire and removed therefrom.

The invention will hereinafter be described in greater particulars with reference to the accom panying drawing illustrating a preferred embodiment thereof.

l On said drawing:

Fig. l is a side elevation of the present anti-- skid device mounted on'a tire.

Fig. 2 is an end view of the anti-skid device.

Fig. 3 is a fragmentary side elevation, partly in section, illustrating elements of the antis-skid ydevice in the position thereof prior tothe 'mounting of the anti-skid device onto the tire, a pivot able member of the anti-skid device being in addition for the sake of comparison also shown lin dash-anddot lines in operative position- Fig. 4 is a plan view of an L-shaped member of the anti-skid device.

/ Fig. 5 is a plan view similar to Fig. 4 for illustrating a modiiied double Lf-shaped member.

The anti-skid device illustrated in Figs. l-e comprises a substantially L-shaped or angular member generally denoted by I land constructed' with two legs 2 and 3 substantially at right angles to each other. Leg 2 supports adjacent the free end thereof a cross member 4 whereas leg 3 'adjacent the free end thereof is provided internally with a set of spaced semicircular recesses 5.

In addition to member I the anti-skid device comprises a second member 6 in the form 'of an inverted U-shaped link straddling the free end of leg 3 at the top and at twor opposite sides thereof. Fixedly mounted between ythe shanks of link. 6 is a pin l engaging in one of the recesses 5. Obviously link 6 may be adjusted in the longitudinal direction of leg 3 and pin 'l inserted into another recess 5 for adapting the antiskid device to tires having widths varying within a certain range.

Pivotally mounted on link t by means of pin 'Iy is a lever 8 consisting of two arms encompassing the legs of` linkeand interconnected atv the bottom ends by means of a cross member 9.

Mounted for rotation between the arms of lever 8 is a cam it supported by a pin Il and provided i oisans, (o1. fiez-@225) 2 with a bore i2 for applying a suitable implement for rotating :cam Il). yAfter mounting lint; ii on leg a stop 'i3 'is welded or otherwise `secured to -the free end oi leg 3 for preventing an undesired separation of elements l and 6. v

When the anti-skid device above described` is to be mounted on a tire, such as it, Fig. l', "earn it occupies the` position shown in Fig. 3, lever t. being then in the position shown in full lines whereby the .anti-skid device may easily be appliedronto tire lli, the cross members il and 'a being then moved to points below the maximum Width of tire ifi. The implement referred to is then inserted .in bore i2 and turned clockwise in Fig. 3 whereby o'am it is rotated clockwise. Cam i0 then cooperates with the bottom end for link S: but. as the latter cannot rotate outwards in relation to leg 3, lever $3 will be rotated inwards about pin 'l for pressing lever 2s and leg E against tire ifi.

As both lever and leg 2 consist of rr-:lative'lt7 thin bars mounted edgewise on tire iii said .bars will be pressed into tire It to some extent for counteracting the tendency or" the antinskid deM vice to slide along tire ifi in operation.

vAs shown cam t@ is. constructed with a fiat surface i5 which in rotating cam ii'finally engages fiat surfaces it at the bottom of link 6 for locking the anti-skid device on tire it.

As may be seen from Fig. l link t and lever i in the operative position of the anti-skid vdevice aresubstantially aligned and besides cam tilin this position is situated Within the outline Oi lever E. Thus, projecting parts are substantially avoided which might interfere with existing mndguards or the like on the vehicle.

When the anti-skid device no longer is required one need only rock cam i@ countencloclrwise in Fig. 1 so as to move cam is to the position shown in Fig. 3 whereupon the anti-skid device may easily be removed from tire irl.

'For certain tires it may be suitable to use a double .Lsh'a.ped'member as indicated in Fig. 5,

both arms l" and i being then 'provided with* recesses 5 at one end .and interconnected `also at that 'end by a cross member t'.. Link d is situated between arms l and I".

What I claim'is:

1. An anti-skid device for mounting on a tire, comprising arst; substantially L-shaped member, composed of two legs,V one .of which legs is adapted to be placed against one side of a tire, a second member supported by said first member adjacent the free end of the other leg thereof and adjustable into diierent positions along said other leg toward and away from said one leg, said second member engaging said other leg in such a manner that said second member in each adjusted position is locked against rotation away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members for rotating said third member relatively to said second member toward said one leg of said iirst member for pressing said third member against the other side of said tire.

2. An anti-skid device for mounting a tire, comprising a iirst, substantially L-shaped member, composed of two legs, one of which legs is adapted to be placed against one side of a tire, a second member supported by said first member adjacent the free end of the other leg thereof and adjustable into diferent positions along said other leg toward and away from said one leg, one of said first and second members being provided with a set of spaced recesses and the other having an element insertable into any of said recesses, both of said first and second members engaging each other also at another point to prevent rotation of said second member relatively to said first member away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members for rotating said third member relatively to said second member toward said one leg of said first member for pressing said third member against the other side of said tire.

3. An anti-skid device for mounting on a tire, comprising a first, substantially L-shaped member, composed of two legs, one of which legs is adapted to be placed against one side of a tire, a second member supported by said iirst member adjacent the free end of the other leg thereof and adjustable into diierent positions along said other leg toward and away from said one leg, said other leg internally being provided with a set of spaced recesses whereas said second member has a pin tting in any of said recesses, and grips said other leg externally thereof to prevent rotation of said second member away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members for rotating said third member relatively to said second member toward said one leg of said first member for pressing said third member against the other side of said tire.

4. An anti-skid device for mounting on a tire, comprising a first, substantially L-shaped member, composed of two legs, one of which legs is adapted to be placed against one side of a tire, a second member supported by said rst member adjacent the free end of the other leg thereof and adjustable into different positions along said other leg toward and away from said one leg, said second member engaging said other leg in such a manner that said second member in each adjusted position is locked against rotation away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members for rotating said third member relatively to said second member toward said one leg of said first member for pressing said third member against the other side of said tire all of said members aeaaais being made of bars adapted to be mounted edgewise on said tire.

5. An anti-skid device for mounting on a tire, comprising a first, substantially L-shaped member, composed of two legs, one of which iegs is adapted to be placed against one side of a tire, a second member supported by said rst member adjacent the free end of the other leg thereof and adjustable into diiierent positions along said other leg toward and away from said one leg, said second member engaging said other leg in such a manner that said second member in each adjusted position is locked against rotation away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members and comprising a cam mounted for rotation on said third member and adapted upon rotation in one direction to cooperate with said second member for rotating said third member to press against the other side of said tire.

5. An anti-skid device for mounting on a tire, comprising a first, substantially L-shaped member, composed of two legs, one of which legs is adapted to be placed against one side of a tire, a second member supported by said first member adjacent the free end of the other leg thereof and adjustable into diierent positions along said other leg toward and away from said one leg, said second member engaging said other leg in such a manner that said second member in each adjusted position is locked against rotation away from said one leg, a third member pivoted to said second member, and a tightening means operating between said second and third members ior rotating said third member relatively to said second member toward said one leg of said first member for pressing said third member against the other side of said tire, said second and third members in the operative position of said antiskid device being substantially aligned, and said tightening means in said position being situated substantially inside the outline of said third member.

7. An anti-skid device for mounting on a tire, comprising a first, substantially L-shaped member, composed of two legs, one of which legs is adapted to be placed against one side of a tire, a second member supported by said first member adjacent the free end of the other leg thereof and adjustable into diierent positions along said other leg toward and away from said one leg, said other leg internally being provided with a set of spaced recesses whereas said second member has a pin fitting in any of said recesses, and grips said other leg externally thereof to prevent rotation of said second member away from said one leg, a third member pivoted to said second member by means of said pin, and a tightening means operating between said second and third members for rotating said third member relatively to said second member toward said one leg of said irst member for pressing said third member against the other side of said tire.

OLOTI CARDELL.

References cites in the sie of'this patent UNrren ermee manure 

